Illuminated sign



FIG. 1 is a front perspective view of an illuminated sign showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevation view thereof, the back elevation view being the same;

FIG. 4 is a right side elevation view thereof, the left side elevation view being the same;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines depict portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for an illuminated sign, as shown and described. 